就我自己而言，一个现象重复2到3次以上，我才可能注意到。到发现它们的规律，可能还要再有3到4次。这就是发现股票交易规律的门槛。
As far as I am concerned, a phenomenon is repeated more than 2 ~ 3 times before I can notice it. It may take another 3 to 4 times to discover their rules. This is the threshold for discovering the rules of stock trading.
